Plastic Physical Testing

Polyhedron Laboratories performs plastic physical testing according to ASTM standards. Polyhedron also offers additional physical testing, such as Density by the Gas Expansion Pycnometer. For more information about the type of physical testing that Polyhedron offers, please contact us.

ASTM D 1204-02 Testing

Standard Test Method for Linear Dimensional Changes of Non-rigid Thermoplastic Sheeting or Film at Elevated Temperature

This test procedure outlines the measurement of changes in linear dimensions of non-rigid thermoplastic film or sheeting that result from exposure of the material to precise conditions of time and elevated temperature.

ASTM D 1505-03 Testing

Standard Test Method for Density of Plastics by the Density-Gradient Technique

These test procedures describe the determination of the density and specific gravity (relative density) of solid plastics in forms such as tubes, rods, sheets, or molded parts. Test A is for the testing of solid plastics in water; Test B is for the testing of solid plastics in other liquids (other than water).

ASTM D 792-00 Testing

These test procedures describe the determination of the density and specific gravity (relative density) of solid plastics in forms such as tubes, rods, sheets, or molded parts. Test A is for the testing of solid plastics in water; Test B is for the testing of solid plastics in other liquids (other than water).

ASTM D 1434-82 Testing

Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting

This test procedure deals with the estimation of the steady-state rate of transmission of a gas through plastics in the form of sheeting, film, plastic-coated papers or fabrics, and laminates. This test routine provides for the determination of permeance, gas transmission rate (GTR), and permeability (in the case of homogeneous materials). Two test methods are provided – Procedure M (Manometric) and Procedure V (Volumetric).

ASTM D 1331-89 Testing

Standard Test Methods for Surface and Interfacial Tension of Solutions of Surface-Active Agents

These test procedures deal with the determination of surface and interfacial tension of solutions of surface-active agents. The two procedures methods are Procedure A (Surface Tension), which covers aqueous solutions of surface-active agents, but also applies to mixed solvent solutions and nonaqueous solutions; Procedure B (Interfacial Tension), which applies to two-phase solutions. More than one solute component may be present, including solute components that are not necessarily surface-active.

ASTM D 570-98 Testing

Standard Test Method for Water Absorption of Plastics

This test procedure deals with the determination of the relative rate of absorption of water by plastics when immersed. This test routine applies to the testing of all types of plastics, including hot-molded, cast, and cold-molded resinous products, and both laminated and homogeneous plastics in tube and rod form, as well as in sheets 0.13 millimeters (0.005 inches) or greater in thickness.